<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div id="app">{{msg}}</div>
</body>
<script src="MVVM/mvvm.js"></script>
<script src="MVVM/observer.js"></script>
<script src="MVVM/compile.js"></script>

<script src="MVVM/watcher.js"></script>
<script>
    var vm = new MVVM({
        el:"#app",
        data:{
            msg:"xxx"
        }
    })
</script>
</html>